'UnknownHostException: proxy' after calling Webstart with Java 6

Hello,
after calling a Java Webstart application with 1.6.0_13, installed (exactly: build 1.6.0_13-b03), I've got an 'UnknownHostException: proxy' (detailed stacktrace see below) at the beginning of the log output. This error log doesn't appear with 1.5.0_16. Nevertheless the webstart application is running on both Java versions (5 and 6); only that error log on Java 6 is strange.
What may be the reason for this 'UnknownHostException: proxy' log?
How to avoid this exception even for Java 6?
Thomas Wiedmann
Detailed stacktrace:
java.net.UnknownHostException: proxy
     at java.net.PlainSocketImpl.connect(Unknown Source)
     at java.net.Socket.connect(Unknown Source)
     at java.net.Socket.connect(Unknown Source)
     at sun.net.NetworkClient.doConnect(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.<init>(Unknown Source)
     at sun.net.www.http.HttpClient.New(Unknown Source)
     at sun.net.www.http.HttpClient.New(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at com.sun.deploy.net.proxy.AbstractAutoProxyHandler.getJSFileFromURL(Unknown Source)
     at com.sun.deploy.net.proxy.AbstractAutoProxyHandler.init(Unknown Source)
     at com.sun.deploy.net.proxy.DynamicProxyManager.reset(Unknown Source)
     at com.sun.deploy.net.proxy.DeployProxySelector.reset(Unknown Source)
     at com.sun.javaws.Main.initializeExecutionEnvironment(Unknown Source)
     at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
     at com.sun.javaws.Main$1.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
JNLP JREDesc in Component ignored: null

Have you actually configured a proxy? Could it be something wrong with this config?
Anyway check your connection settings in the java control panel (you'd may wanna give a look here too).
Bye.

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http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6967414
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6805618
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      if (file.isDirectory()) //check if it is a directory
     throw new UserException("Invalid zip file ["+zipName+"]") ;
      if (file.exists() && !file.canWrite()) //check if it is readonly
     throw new UserException("Zip file is ReadOnly ["+zipName+"]") ;
      if (file.exists()) //overwrite the existing file
     file.delete();
      file.createNewFile();
      //instantiate the ZipOutputStream
      fos = new FileOutputStream(file) ;
      bos = new BufferedOutputStream(fos) ;
      zos = new ZipOutputStream(bos) ;
      this.writeZipFileEntry(zos, fileName); //call to write the file into the zip
      zos.finish() ;
    catch (ZipException ze) {
      throw ze ;
    catch (FileNotFoundException fnfe) {
      throw fnfe ;
    catch (IOException ioe) {
      throw ioe ;
    catch (UserException ue) {
      throw ue ;
    finally {
      //close all the stream and file
      if (fos != null)
     fos.close() ;
      if (bos != null)
     bos.close();
      if (zos != null)
     zos.close();
      if (file != null)
     file = null ;
    }//end of try-catch-finally
private void writeZipFileEntry(ZipOutputStream zos, String fileName)
      throws ZipException, FileNotFoundException, IOException, UserException {
    BufferedInputStream bis = null ;
    File file = null ;
    ZipEntry zentry = null ;
    byte[] bArray = null ;
    try {
      file = new File(fileName) ; //instantiate the file
      if (!file.exists()) //check if the file is not exist
     throw new UserException("No such file ["+fileName+"]") ;
      if (file.isDirectory()) //check if the file is a directory
     throw new UserException("Invalid file ["+fileName+"]") ;
      //instantiate the BufferedInputStream
      bis = new BufferedInputStream(new FileInputStream(file)) ;
      //Get the content of the file and put into the byte[]
      int size = (int) file.length();
      if (size == -1)
     throw new UserException("Cannot determine the file size [" +fileName + "]");
      bArray = new byte[(int) size];
      int rb = 0;
      int chunk = 0;
      while (((int) size - rb) > 0) {
     chunk = bis.read(bArray, rb, (int) size - rb);
     if (chunk == -1)
       break;
     rb += chunk;
      }//end of while (((int)size - rb) > 0)
      //instantiate the CRC32
      CRC32 crc = new CRC32() ;
      crc.update(bArray, 0, size);
      //instantiate the ZipEntry
      zentry = new ZipEntry(fileName) ;
      zentry.setMethod(ZipEntry.STORED) ;
      zentry.setSize(size);
      zentry.setCrc(crc.getValue());
      //write all the info to the ZipOutputStream
      zos.putNextEntry(zentry);
      zos.write(bArray, 0, size);
      zos.closeEntry();
    catch (ZipException ze) {
      throw ze ;
    catch (FileNotFoundException fnfe) {
      throw fnfe ;
    catch (IOException ioe) {
      throw ioe ;
    catch (UserException ue) {
      throw ue ;
    finally {
      //close all the stream and file
      if (bis != null)
     bis.close();
      if (file != null)
     file = null ;
    }//end of try-catch-finally
}

Tried~
The problem is still here~ >___<
Anyway, thanks for information sharing~
The message is:
Cannot open file: it does not appear to be a valid archive.
If you downloaded this file, try downloading the file again.
The problem may be here:
if (fos != null)
fos.close() ;
if (bos != null)
bos.close();
if (zos != null)
zos.close();
if (file != null)
file = null ;
The fos is closed before bos so the last buffer is not
saved.
zos.close() is enough.

Re: [Fwd: Java Applet IIOP Call-In with Release 3C--How dowe speed up d

Hi Michael,
We have done exactly what you describe and have avoided the slow applet
download times. Although it can be a bit tricky, it is possible to use
the ORB bundled inside the Netscape 4.0 browser (Visibroker for Java by
Visigenic). Most of the code should follow Netscape's examples (on
http://developer.netscape.com)--just remember to initialize the ORB by
passing a reference to the current applet in orb_init() (so that you
invoke something like orb_init(this) [assuming you are extending
java.applet.Applet]). Pulling up the Java console within your web
browser should help debug quite a bit (a lot of debug messages will get
printed there the ORB is having problems).
Netscape has just implemented the applet caching schemes you describe,
so it probably shouldn't matter too much if you use another vendor's
ORB (we've done this with Iona's OrbixWeb). If you use ZIP files, they
have to be uncompressed, and I don't think that the browser will cache
them between browser sessions. Netscape 4.0 does seem to handle
compressed JAR files just fine and it does indeed cache them between
browser sessions. I'd go with the JAR format anyway since the ZIP
bundling was just a workaround until Sun got their act together in the
1.1 JDK.
By the way, you also might want to take advantage of the code-signing
and capabilities APIs of Netscape if you are going to invoke methods on
objects not resident on your web server. Otherwise, you will probably
run into the (in)famous browser applet security restrictions and you may
have other problems doing things like callbacks from Forte, etc.
If you want more detail on how it works, let me know and I can post some
examples.
Oh, one last thing: we are a consulting firm specializing in these kinds
of things :)
Bill
Subject: Java Applet IIOP Call-In with Release 3C--How do we speed up download time.
Date: Wed, 2 Jul 1997 09:10:31 -0500
From: Michael Nelson <[email protected]>
To: "'[email protected]'" <[email protected]>
We have successfully implemented a simple Java Applet that calls into
Forte Services via IIOP. However, the duration of the download time
for
Applet and its required class files is UNACCEPTABLE in a typical
INTERNET environment where 28.8K modems and multiple hops around the
net
are not uncommon. We dialed into our network at 28.8K (but no
hopping),
and found that download times varied from 1.5 - 2.0 minutes. This is
unacceptable, even by internet standards. We have been using the
Visigenic Visibroker product as the ORB.
After doing some investigation, we've come up with several ideas to
speed up download time:
1. Figure out how to use the Visigenic components (CORBA/IIOP class
files) that come bundled with the latest version of the Netscape
Navigator browser, so that they don't have to be downloaded
2. Figure out how to use ZIP files. Here's what I've read: "Since
the
introduction of Netscape Navigator 3.0, you can specify an
uncompressed
.zip file as an addition to the code base of your application. By
specifying a ZIP file, the browser will load your applet's classes
from
a specified ZIP file before it searches the code base. This ZIP can
improve applet download time by reducing the number of HTTP
connections
required to fetch applet code. As an added benefit, Netscape caches
the
single ZIP file so that it will not reload your applet unless the date
of the ZIP file has changed."
3. Figure out how to use JAR files. Here's what I've read: "JAR
stands for Java archive. It's a file format based on the popular ZIP
file format and is used for aggregating many files into one. Although
JAR can be used as a general archiving tool, the primary motivation
for
its development was so that Java applets and their requisite
components
can be downloaded to a browser in a single HTTP transaction, rather
than
opening a new connection for each piece. This greatly improves the
speed with which an applet can be loaded onto a web page and begin
functioning. The JAR format also supports compression, which reduces
the
size of the file and improves download time still further."
Unfortunately, we've been unable to get any of these approaches to
work.
Has any one used these or other approaches to speed up applet
download
time? Or, does anyone know of consulting firms that specialize in
this
sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157
Billy L. Williams, Jr. | email: [email protected]
Sage Solutions, Inc. | Tel: (415) 392-7243 (x506) Fax: (415) 391-3899
| Pager: (415) 605-1791 (page me if urgent)

Hi Michael,
We have done exactly what you describe and have avoided the slow applet
download times. Although it can be a bit tricky, it is possible to use
the ORB bundled inside the Netscape 4.0 browser (Visibroker for Java by
Visigenic). Most of the code should follow Netscape's examples (on
http://developer.netscape.com)--just remember to initialize the ORB by
passing a reference to the current applet in orb_init() (so that you
invoke something like orb_init(this) [assuming you are extending
java.applet.Applet]). Pulling up the Java console within your web
browser should help debug quite a bit (a lot of debug messages will get
printed there the ORB is having problems).
Netscape has just implemented the applet caching schemes you describe,
so it probably shouldn't matter too much if you use another vendor's
ORB (we've done this with Iona's OrbixWeb). If you use ZIP files, they
have to be uncompressed, and I don't think that the browser will cache
them between browser sessions. Netscape 4.0 does seem to handle
compressed JAR files just fine and it does indeed cache them between
browser sessions. I'd go with the JAR format anyway since the ZIP
bundling was just a workaround until Sun got their act together in the
1.1 JDK.
By the way, you also might want to take advantage of the code-signing
and capabilities APIs of Netscape if you are going to invoke methods on
objects not resident on your web server. Otherwise, you will probably
run into the (in)famous browser applet security restrictions and you may
have other problems doing things like callbacks from Forte, etc.
If you want more detail on how it works, let me know and I can post some
examples.
Oh, one last thing: we are a consulting firm specializing in these kinds
of things :)
Bill
Subject: Java Applet IIOP Call-In with Release 3C--How do we speed up download time.
Date: Wed, 2 Jul 1997 09:10:31 -0500
From: Michael Nelson <[email protected]>
To: "'[email protected]'" <[email protected]>
We have successfully implemented a simple Java Applet that calls into
Forte Services via IIOP. However, the duration of the download time
for
Applet and its required class files is UNACCEPTABLE in a typical
INTERNET environment where 28.8K modems and multiple hops around the
net
are not uncommon. We dialed into our network at 28.8K (but no
hopping),
and found that download times varied from 1.5 - 2.0 minutes. This is
unacceptable, even by internet standards. We have been using the
Visigenic Visibroker product as the ORB.
After doing some investigation, we've come up with several ideas to
speed up download time:
1. Figure out how to use the Visigenic components (CORBA/IIOP class
files) that come bundled with the latest version of the Netscape
Navigator browser, so that they don't have to be downloaded
2. Figure out how to use ZIP files. Here's what I've read: "Since
the
introduction of Netscape Navigator 3.0, you can specify an
uncompressed
.zip file as an addition to the code base of your application. By
specifying a ZIP file, the browser will load your applet's classes
from
a specified ZIP file before it searches the code base. This ZIP can
improve applet download time by reducing the number of HTTP
connections
required to fetch applet code. As an added benefit, Netscape caches
the
single ZIP file so that it will not reload your applet unless the date
of the ZIP file has changed."
3. Figure out how to use JAR files. Here's what I've read: "JAR
stands for Java archive. It's a file format based on the popular ZIP
file format and is used for aggregating many files into one. Although
JAR can be used as a general archiving tool, the primary motivation
for
its development was so that Java applets and their requisite
components
can be downloaded to a browser in a single HTTP transaction, rather
than
opening a new connection for each piece. This greatly improves the
speed with which an applet can be loaded onto a web page and begin
functioning. The JAR format also supports compression, which reduces
the
size of the file and improves download time still further."
Unfortunately, we've been unable to get any of these approaches to
work.
Has any one used these or other approaches to speed up applet
download
time? Or, does anyone know of consulting firms that specialize in
this
sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157
Billy L. Williams, Jr. | email: [email protected]
Sage Solutions, Inc. | Tel: (415) 392-7243 (x506) Fax: (415) 391-3899
| Pager: (415) 605-1791 (page me if urgent)

JNI - core dump - internal error on linux after calling Java method

I'm getting a core dump after calling athe main statric method using JNNI.
On linux.
I can get the class id correcttly but when I attempt to call the method it craches with an internal error , anyone know why it would crash instead of just not work.
if(cls)
    main_methodID = env->GetStaticMethodID(cls, "main", "([Ljava/lang/String;)V");
     printf("Class Found Successfully\n");
else
    printf ( "cls not found\n");
    return 0;
if(main_methodID)
          jstring first_str = env->NewStringUTF("The First String");//create string
          jobjectArray args = (jobjectArray)env->NewObjectArray(1,env->FindClass("java/lang/String"), first_str);//new array with 2 elements
               env->SetObjectArrayElement(args, 2, first_str);//insert the second string into index 1 of the array
          jstring second_str = env->NewStringUTF("The Second String");//create string
          env->SetObjectArrayElement(args, 1, second_str);//insert the second string into index 1 of the array
     env->CallStaticVoidMethod(cls, main_methodID, args);//pass the array to the Java main method
                              The JAVA method is
public static void main(String[] args) {
    System.out.println("Main method in Framework");
        Framework framework = new Framework();


I see yere points but what I see on linux is it makes it to the constructor of the Java object and somewhere afterwards it bails out, the Java app does work alone. It appears to have problems initializing the JFrame, could there be a problem with the Java inheritance when a JVM is invoked throurgh native invocation??
Here's some of the Java stuff
public class Framework extends WindowAdapter {
    public int numWindows = 0;
    private Point lastLocation = null;
    private int maxX = 500;
    private int maxY = 500;
    public Framework() {
        System.out.println("JAVA Framework cnst");//GETTING HERE
        makeNewWindow();
    public void makeNewWindow() {
        System.out.println("JAVA makeWindow"); //GETTING HERE
        JFrame frame = new MyFrame(this); //NOT GETTING HERE!!!!!!!!!
        numWindows++;
        System.out.println("Number of windows: " + numWindows);
        System.out.println("Frame location: " + lastLocation);
        frame.setVisible(true);
        System.out.println("Post Java set frame visible");
    public static void main(String[] args) {
    System.out.println("Main method in Framework");
        Framework framework = new Framework();//GETTING HERE
class MyFrame extends JFrame {
    protected Dimension defaultSize = new Dimension(200, 200);
    protected Framework framework = null;
    public MyFrame(Framework controller) {
        super("New Frame");
        System.out.println("MyFrame cnst ");//NOT GETTING HERE!!!!!!
        framework = controller;
        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
        addWindowListener(framework);
        JMenu menu = new JMenu("Window");
        menu.setMnemonic(KeyEvent.VK_W);
       setSize(defaultSize);
}

Porblem with Java Proxy EJB deploy to XI through NWDI

Situation - I have a web app in Server A (WAS7), it needs to call a java proxy in Server B (XI WAS7). I want to deploy the Java Proxy EJB into the landscape using NWDI. To do this I created an external library with public parts that contains the required jars to build the java proxies. These are aii_msg_runtime.jar, aii_proxy_xirt.jar, and aii_utilxi_misc.jar. The EJB module used part is mapped to the library's public parts. Everything builds fine and the deployment was successful into XI.
Problem - When my web application makes a remote call to the java proxy in XI, NoClassDefFoundError occurs. The first jar that it complain about was aii_util_cimaccess.jar. I included this jar into the library and redeployed. Called the java proxy again, and got another NoClassDefFoundError exception. Now it wanted the lrcclient.jar. I included that into the library and redeployed. Now it wanted another jar. The issue is that all these jars are in the XI server and I shouldn't have to add them as part of the library. Is there a SCA out there that contains these jars, or did I just forget to mark a checkbox somewhere when creating the EJB so that it would reference the XI jars without me adding them to the library?
Note - This architecture works fine without having to add the jars above, if I deploy the Java Proxy EJB from my workspace to XI through the SDM process available through NWDS. This only breaks when I deploy through NWDI.
Thank you in advance.

HI,
please see the below link
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/bc7f08e1-0901-0010-b1bd-80966009d8f0
http://help.sap.com/saphelp_nw2004s/helpdata/en/40/00be09879f114aa1ec46c2afa4445b/frameset.htm
To add On-
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/9221b490-0201-0010-0e90-8cc75cde876c
http://help.sap.com/saphelp_webas630/helpdata/en/cb/f4bc3d42f46c33e10000000a11405a/content.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/eaeb475d-0c01-0010-f5a4-d7a8eb185793
Regards
Chilla

Calling RFC with webdynpro java (in NetWeaver Developer studio)

Calling RFC with webdynpro java (in NetWeaver Developer studio)
Hi,
I want to call only one parameter RFC with webdynpro.
Flight example is very complex.
I want to push a button and pass parameter to RFC input and call RFC.
After execution some message must appaer on the screen.
Is there a step by step .pdf?
Thanks.

Hello Cemil,
There's a seperate Web Dynpro forum for such posts, you should take a look there.
Nonetheless, the classic tutorial is the FlightList. If I was you, I would make sure to do this tutorial step-by-step as it should give you the fundamentals for understanding aRFC. On top of that, it's most likely already available to you on your SAP system...
Here's the link:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a00f7103-6790-2a10-ac9c-fcac7c5b18a3
Cheers,
Hermann

Servlet Communication with Java WebStart

Hi there,
we have an application that works fine with Java WebStart whenever we start it in a local area network. But from outside the LAN the application cannot communicate to it's servlets. I use the codebase IP address with the servlet runner's port (http://<codebase IP>:port/) as URL for servlet communication, but the application's request never reaches the servlets.
My question is now, if anyone had the same or a similar problem with servlet communication using Java WebStart, or if anyone knows, if that might be a problem with proxy configuration.
The servlet runner we use, is JServ from Sun (JSDK2.0) and the webserver where it is running on is not behind a firewall or a proxy, but the client PC with the web start application is.
Thanks,
Katja

Thank you for your early reply. But I think, that's not the problem.
I get no security error and the webserver is identified the same way it is in the jnlp file. Also my application is not running in the Sandbox. My assumption is, that the http-request to the servlet does not go through the proxy server between my PC and the PC the servletrunner is running on.
I wonder if I have to configure my application to use a proxy server for communication with the servlets instead of the direct http-request to the servlet runner?

Calling ESB using Java Web Proxy

Hello Evryone,
I have a ESB which is giving output as follows:-
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Header/>
<env:Body
xmlns:out1="http://www.example.org">
<out1:ProcessResponse
xmlns:out1="http://www.example.org">
<out1:RowSetCollection>
<out1:RowSet>
<out1:SOFTWARE_PKGS
SOFTWARE_PKGS="">database_K_DKL_NW02</out1:SOFTWARE_PKGS>
<out1:CREATION_DATE
CREATION_DATE="">2008-07-07T00:00:00.000+05:30</out1:CREATION_DATE>
<out1:CREATION_TIME
CREATION_TIME="">2008</out1:CREATION_TIME>
<out1:FILE_SIZE
FILE_SIZE="">3435</out1:FILE_SIZE>
<out1:FILE_PATH
FILE_PATH="">http://www.google.com</out1:FILE_PATH>
</out1:RowSet>
<out1:RowSet>
<out1:SOFTWARE_PKGS
SOFTWARE_PKGS="">database_config.txt</out1:SOFTWARE_PKGS>
<out1:CREATION_DATE
CREATION_DATE="">2006-03-14T00:00:00.000+05:30</out1:CREATION_DATE>
<out1:CREATION_TIME
CREATION_TIME="">2006</out1:CREATION_TIME>
<out1:FILE_SIZE
FILE_SIZE="">342345</out1:FILE_SIZE>
<out1:FILE_PATH
FILE_PATH="">\\01hw180464\MOTO\database_config.txt</out1:FILE_PATH>
</out1:RowSet>
<out1:RowSet>
<out1:SOFTWARE_PKGS
SOFTWARE_PKGS="">database_help.doc</out1:SOFTWARE_PKGS>
<out1:CREATION_DATE
CREATION_DATE="">2008-05-12T00:00:00.000+05:30</out1:CREATION_DATE>
<out1:CREATION_TIME
CREATION_TIME="">2005</out1:CREATION_TIME>
<out1:FILE_SIZE
FILE_SIZE="">555</out1:FILE_SIZE>
<out1:FILE_PATH
FILE_PATH="">\\01hw180464\MOTO\database_help.docx</out1:FILE_PATH>
</out1:RowSet>
<out1:RowSet>
<out1:SOFTWARE_PKGS
SOFTWARE_PKGS="">database_help.txt</out1:SOFTWARE_PKGS>
<out1:CREATION_DATE
CREATION_DATE="">2008-07-01T00:00:00.000+05:30</out1:CREATION_DATE>
<out1:CREATION_TIME
CREATION_TIME="">2008</out1:CREATION_TIME>
<out1:FILE_SIZE
FILE_SIZE="">68</out1:FILE_SIZE>
<out1:FILE_PATH
FILE_PATH="">\\01hw180464\MOTO\database_help.txt</out1:FILE_PATH>
</out1:RowSet>
<out1:RowSet>
<out1:SOFTWARE_PKGS
SOFTWARE_PKGS="">database_new.zip</out1:SOFTWARE_PKGS>
<out1:CREATION_DATE
CREATION_DATE="">2008-02-01T00:00:00.000+05:30</out1:CREATION_DATE>
<out1:CREATION_TIME
CREATION_TIME="">2000</out1:CREATION_TIME>
<out1:FILE_SIZE
FILE_SIZE="">1567</out1:FILE_SIZE>
<out1:FILE_PATH
FILE_PATH="">\\01hw180464\MOTO\database_new.zip</out1:FILE_PATH>
</out1:RowSet>
<out1:RowSet>
<out1:SOFTWARE_PKGS
SOFTWARE_PKGS="">database_search.txt</out1:SOFTWARE_PKGS>
<out1:CREATION_DATE
CREATION_DATE="">2007-12-03T00:00:00.000+05:30</out1:CREATION_DATE>
<out1:CREATION_TIME
CREATION_TIME="">2007</out1:CREATION_TIME>
<out1:FILE_SIZE
FILE_SIZE="">365</out1:FILE_SIZE>
<out1:FILE_PATH
FILE_PATH="">\\01hw180464\MOTO\database_search.txt</out1:FILE_PATH>
</out1:RowSet>
</out1:RowSetCollection>
</out1:ProcessResponse>
</env:Body>
</env:Envelope>
I am trying to call this ESB from Java web Proxy. But I am getting following error :-
deserialization error: XML reader error: unexpected character content: "database_K_DKL_NW02"
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:163)
     at proxyesb.proxy.types.org.example.runtime.RowSet_LiteralSerializer.doDeserialize(RowSet_LiteralSerializer.java:79)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.RowSetCollection_LiteralSerializer.doDeserialize(RowSetCollection_LiteralSerializer.java:61)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.ProcessResponse_LiteralSerializer.doDeserialize(ProcessResponse_LiteralSerializer.java:62)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub._deserialize_execute(__soap_ModifyResult_execute_ppt_Stub.java:126)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub._readFirstBodyElement(__soap_ModifyResult_execute_ppt_Stub.java:112)
     at oracle.j2ee.ws.client.StreamingSender._sendImpl(StreamingSender.java:333)
     at oracle.j2ee.ws.client.StreamingSender._send(StreamingSender.java:112)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub.execute(__soap_ModifyResult_execute_ppt_Stub.java:76)
     at proxyesb.proxy.__soap_ModifyResult_execute_pptClient.execute(__soap_ModifyResult_execute_pptClient.java:50)
     at proxyesb.proxy.__soap_ModifyResult_execute_pptClient.main(__soap_ModifyResult_execute_pptClient.java:36)
CAUSE:
XML reader error: unexpected character content: "database_K_DKL_NW02"
     at oracle.j2ee.ws.common.streaming.XMLReaderBase.nextElementContent(XMLReaderBase.java:53)
     at proxyesb.proxy.types.org.example.runtime.SOFTWARE_PKGS_LiteralSerializer.doDeserialize(SOFTWARE_PKGS_LiteralSerializer.java:60)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.RowSet_LiteralSerializer.doDeserialize(RowSet_LiteralSerializer.java:79)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.RowSetCollection_LiteralSerializer.doDeserialize(RowSetCollection_LiteralSerializer.java:61)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.ProcessResponse_LiteralSerializer.doDeserialize(ProcessResponse_LiteralSerializer.java:62)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub._deserialize_execute(__soap_ModifyResult_execute_ppt_Stub.java:126)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub._readFirstBodyElement(__soap_ModifyResult_execute_ppt_Stub.java:112)
     at oracle.j2ee.ws.client.StreamingSender._sendImpl(StreamingSender.java:333)
     at oracle.j2ee.ws.client.StreamingSender._send(StreamingSender.java:112)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub.execute(__soap_ModifyResult_execute_ppt_Stub.java:76)
     at proxyesb.proxy.__soap_ModifyResult_execute_pptClient.execute(__soap_ModifyResult_execute_pptClient.java:50)
     at proxyesb.proxy.__soap_ModifyResult_execute_pptClient.main(__soap_ModifyResult_execute_pptClient.java:36)
CAUSE:
XML reader error: unexpected character content: "database_K_DKL_NW02"
     at oracle.j2ee.ws.common.streaming.XMLReaderBase.nextElementContent(XMLReaderBase.java:53)
     at proxyesb.proxy.types.org.example.runtime.SOFTWARE_PKGS_LiteralSerializer.doDeserialize(SOFTWARE_PKGS_LiteralSerializer.java:60)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.RowSet_LiteralSerializer.doDeserialize(RowSet_LiteralSerializer.java:79)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.RowSetCollection_LiteralSerializer.doDeserialize(RowSetCollection_LiteralSerializer.java:61)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.types.org.example.runtime.ProcessResponse_LiteralSerializer.doDeserialize(ProcessResponse_LiteralSerializer.java:62)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.internalDeserialize(LiteralObjectSerializerBase.java:250)
     at oracle.j2ee.ws.common.encoding.literal.LiteralObjectSerializerBase.deserialize(LiteralObjectSerializerBase.java:159)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub._deserialize_execute(__soap_ModifyResult_execute_ppt_Stub.java:126)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub._readFirstBodyElement(__soap_ModifyResult_execute_ppt_Stub.java:112)
     at oracle.j2ee.ws.client.StreamingSender._sendImpl(StreamingSender.java:333)
     at oracle.j2ee.ws.client.StreamingSender._send(StreamingSender.java:112)
     at proxyesb.proxy.runtime.__soap_ModifyResult_execute_ppt_Stub.execute(__soap_ModifyResult_execute_ppt_Stub.java:76)
     at proxyesb.proxy.__soap_ModifyResult_execute_pptClient.execute(__soap_ModifyResult_execute_pptClient.java:50)
     at proxyesb.proxy.__soap_ModifyResult_execute_pptClient.main(__soap_ModifyResult_execute_pptClient.java:36)
Process exited with exit code 0.
Please help me how to resolve this.

It seems like it doesn't like the underscore characters.

'UnknownHostException: proxy' after calling Webstart with Java 6

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